/* Template Page — Apple-inspired Minimal Design
   Uses design tokens from modern-style.css */

/* ====== Page Layout ====== */
.template-page {
    min-height: calc(100vh + 400px);
    height: auto;
    background: var(--bg-body);
    padding-bottom: 120px;
    overflow-y: visible;
}

/* ====== Page Header ====== */
.page-header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 8px 12px;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.header-content {
    position: relative;
    z-index: 10;
    text-align: center;
}

/* ====== Nav Tabs ====== */
.nav-tabs-container {
    position: relative;
    width: 100%;
    z-index: 10;
}

.nav-tabs {
    display: flex;
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    padding: 6px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

.nav-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 8px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    z-index: 11;
    min-height: 44px;
}

.nav-tab:hover:not(.active) {
    color: var(--primary);
    background: rgba(102, 126, 234, 0.06);
}

.nav-tab.active {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.28);
}

.nav-tab.active .tab-icon {
    transform: scale(1.1);
}

.tab-icon {
    font-size: 16px;
    transition: transform var(--transition-smooth);
    line-height: 1;
}

.tab-text {
    font-weight: 600;
    white-space: nowrap;
}

.tab-indicator {
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    border-radius: 2px;
    transition: transform var(--transition-normal);
}

.nav-tab.active .tab-indicator {
    transform: translateX(-50%) scaleX(1);
}

/* ====== Tab Content ====== */
.tab-content {
    opacity: 1;
    transform: translateY(0);
    transition: all var(--transition-smooth);
}

.tab-content:not(.active) {
    display: none;
}

/* ====== Prompt Intro Section ====== */
.prompt-intro-section {
    background: var(--bg-surface);
    padding: 0 var(--spacing-lg) var(--spacing-xs);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    margin-top: 0;
}

.prompt-intro-container {
    max-width: 800px;
    margin: 0 auto;
}

.prompt-intro-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    margin: 0 auto;
    max-width: 500px;
    box-shadow: var(--shadow-xs);
}

.prompt-intro-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.prompt-intro-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.prompt-intro-icon {
    font-size: 2rem;
    line-height: 1;
    display: block;
    margin: 0 0 var(--spacing-sm) 0;
}

.prompt-intro-text h2 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.5;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.prompt-intro-text p {
    font-size: 0.85rem;
    line-height: 1.4;
    color: var(--text-secondary);
    text-align: center;
    margin: 0;
    white-space: pre-line;
    font-weight: 500;
    letter-spacing: 0.01em;
}

/* ====== Prompt Gallery ====== */
.prompt-gallery-section {
    padding: var(--spacing-lg);
    background: var(--bg-surface);
}

.prompt-gallery-container {
    max-width: 1200px;
    margin: 0 auto;
}

.prompt-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.prompt-item {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
    cursor: pointer;
    position: relative;
}

.prompt-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.prompt-item-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-body);
}

.prompt-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.prompt-item:hover .prompt-item-image img {
    transform: scale(1.04);
}

.prompt-item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.prompt-item:hover .prompt-item-overlay {
    opacity: 1;
}

.prompt-item-overlay i {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.prompt-item-overlay span {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.prompt-item-name {
    padding: var(--spacing-md);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.4;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    background: var(--bg-surface);
}

/* Refresh Gallery Button */
.prompt-gallery-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.refresh-gallery-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-smooth);
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.2);
}

.refresh-gallery-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.refresh-gallery-btn i {
    transition: transform var(--transition-smooth);
}

.refresh-gallery-btn:hover i {
    transform: rotate(180deg);
}

/* ====== Prompt Modal ====== */
.prompt-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

.prompt-modal.active {
    display: flex;
    opacity: 1;
}

.prompt-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease-out;
    z-index: 1;
}

.prompt-modal-content {
    background: var(--bg-surface);
    border-radius: 20px;
    max-width: 800px;
    width: 95%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease-out;
}

.prompt-modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-body);
    border-radius: 20px 20px 0 0;
}

.prompt-modal-header h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.prompt-modal-close {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.prompt-modal-close:hover {
    background: rgba(0, 0, 0, 0.06);
    transform: rotate(90deg);
}

.prompt-modal-body {
    padding: var(--spacing-lg);
}

.prompt-preview-image {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--bg-body);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.prompt-preview-image img {
    max-width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.prompt-text-container {
    background: var(--bg-body);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.prompt-text-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary);
}

.prompt-text-header h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.prompt-text-content {
    background: var(--bg-surface);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    min-height: 80px;
    word-wrap: break-word;
    white-space: pre-wrap;
    font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
    position: relative;
    border-left: 3px solid var(--primary);
}

.prompt-text-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.copy-prompt-btn,
.close-modal-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-normal);
    min-width: 120px;
    justify-content: center;
}

.copy-prompt-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.2);
}

.copy-prompt-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.close-modal-btn {
    background: var(--bg-body);
    color: var(--text-secondary);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.close-modal-btn:hover {
    background: rgba(0, 0, 0, 0.04);
    color: var(--text-primary);
}

/* ====== Summary Section ====== */
.summary-section {
    background: var(--bg-surface);
    padding: 0 4px var(--spacing-xs);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    margin-top: 0;
}

.summary-container {
    max-width: 800px;
    margin: 0 auto;
}

.summary-content {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    margin: 0 auto;
    max-width: 500px;
    box-shadow: var(--shadow-xs);
}

.summary-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.summary-text {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-primary);
    text-align: center;
    margin: 0;
    white-space: pre-line;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.summary-highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.summary-loading {
    text-align: center;
    padding: var(--spacing-lg);
}

.summary-loading .loading-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.summary-loading .loading-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    animation: fadeIn 1.5s ease-in-out infinite;
}

.summary-loading .loading-dots span:nth-child(1) { animation-delay: 0s; }
.summary-loading .loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.summary-loading .loading-dots span:nth-child(3) { animation-delay: 0.4s; }

.summary-loading p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* ====== Category Section ====== */
.category-section {
    background: var(--bg-surface);
    padding: var(--spacing-sm);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.category-section::-webkit-scrollbar {
    display: none;
}

.category-scroll {
    display: flex;
    gap: var(--spacing-sm);
    min-width: max-content;
    padding-bottom: 2px;
}

.category-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-body);
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    border: 1px solid transparent;
    min-width: 60px;
    justify-content: center;
    font-size: 0.85rem;
}

.category-item:hover {
    background: rgba(102, 126, 234, 0.06);
    color: var(--primary);
}

.category-item.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.25);
}

.category-name {
    font-weight: 500;
    font-size: 0.8rem;
}

.category-badge {
    background: rgba(0, 0, 0, 0.06);
    padding: 1px 6px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

.category-item.active .category-badge {
    background: rgba(255, 255, 255, 0.3);
}

/* ====== Template Grid ====== */
.template-grid-container {
    padding: 8px 4px;
    max-width: 100%;
    margin: 0 auto;
}

.template-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: var(--spacing-lg);
}

/* ====== Template Card ====== */
.template-card {
    background: var(--bg-surface);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
    cursor: pointer;
    position: relative;
}

.template-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.template-image {
    width: 100%;
    height: auto;
    min-height: 200px;
    background: var(--bg-surface);
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.template-image img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    background: var(--bg-surface);
    transition: transform var(--transition-smooth);
}

.template-card:hover .template-image img {
    transform: scale(1.03);
}

.template-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.template-card:hover .template-overlay {
    opacity: 1;
}

.view-icon {
    color: white;
    font-size: 2rem;
}

.template-info {
    padding: var(--spacing-sm);
}

.template-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
    text-align: center;
    padding: var(--spacing-xs) 0;
}

/* ====== Lazy Loading Section ====== */
.load-more-section {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
}

.lazy-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.lazy-loading .loading-dots {
    display: flex;
    gap: 8px;
}

.lazy-loading .loading-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    animation: fadeIn 1.5s ease-in-out infinite;
}

.lazy-loading .loading-dots span:nth-child(1) { animation-delay: 0s; }
.lazy-loading .loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.lazy-loading .loading-dots span:nth-child(3) { animation-delay: 0.4s; }

.lazy-loading p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* ====== Image Modal ====== */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.image-modal.active {
    display: flex;
    opacity: 1;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-content {
    background: transparent;
    border-radius: 0;
    width: 96vw;
    max-width: 900px;
    max-height: 96vh;
    position: relative;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.image-modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: none;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.modal-body {
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-height: 96vh;
    overflow: hidden;
    position: relative;
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 18px;
    cursor: pointer;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.modal-close-btn:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.05);
}

.image-container {
    position: relative;
    text-align: center;
    margin: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    max-height: 96vh;
}

#modalImage {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    background: white;
    display: block;
    border-radius: var(--radius-sm);
}

.image-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.15);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.template-actions {
    display: none;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-body);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    min-width: 80px;
}

.action-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.action-btn i {
    font-size: 1.2rem;
}

.action-btn span {
    font-size: 0.8rem;
    font-weight: 500;
}

/* ====== Back to Top Button ====== */
.back-to-top-btn {
    position: fixed;
    bottom: 95px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    z-index: 9997;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 12px rgba(102, 126, 234, 0.2);
    transition: all var(--transition-normal);
    opacity: 0;
    transform: scale(0.8) translateY(20px);
    text-align: center;
    line-height: 1;
}

.back-to-top-btn.show {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.back-to-top-btn:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: scale(1.05) translateY(-1px);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}

.back-to-top-btn:active {
    transform: scale(0.95) translateY(0);
}

@media (min-width: 431px) {
    .back-to-top-btn {
        right: calc(50% - 215px + 20px);
    }
}

/* ====== Animations ====== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ====== Responsive: 768px ====== */
@media (max-width: 768px) {
    .page-title {
        font-size: 1.5rem;
    }

    .summary-content {
        max-width: 450px;
        padding: var(--spacing-sm);
    }

    .summary-text {
        font-size: 0.85rem;
        line-height: 1.4;
    }

    .template-grid {
        gap: var(--spacing-md);
    }

    .template-image {
        min-height: 180px;
    }

    .modal-content {
        width: 96vw;
        max-height: 92vh;
        max-width: 760px;
    }

    #modalImage {
        max-height: 85vh;
    }

    .template-actions {
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .action-btn {
        min-width: 70px;
        padding: var(--spacing-sm);
    }
}

/* ====== Responsive: 480px ====== */
@media (max-width: 480px) {
    .page-header {
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .nav-tabs {
        padding: 4px;
    }

    .nav-tab {
        padding: 10px 12px;
        font-size: 13px;
        min-height: 40px;
        gap: 6px;
    }

    .tab-icon {
        font-size: 14px;
    }

    .tab-text {
        font-size: 13px;
    }

    .prompt-intro-section {
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .prompt-intro-card {
        max-width: none;
    }

    .prompt-intro-text h2 {
        font-size: 0.9rem;
    }

    .prompt-intro-text p {
        font-size: 0.8rem;
    }

    .prompt-gallery-section {
        padding: var(--spacing-md);
    }

    .prompt-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .prompt-item-image {
        height: 160px;
    }

    .prompt-item-name {
        font-size: 0.8rem;
        min-height: 50px;
        padding: var(--spacing-sm);
    }

    .refresh-gallery-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.9rem;
    }

    .prompt-modal {
        padding: var(--spacing-md);
    }

    .prompt-modal-content {
        max-height: 85vh;
        border-radius: var(--radius-lg);
    }

    .prompt-modal-header {
        padding: var(--spacing-md);
    }

    .prompt-modal-header h3 {
        font-size: 1rem;
    }

    .prompt-modal-body {
        padding: var(--spacing-md);
    }

    .prompt-preview-image img {
        max-height: 200px;
    }

    .prompt-text-container {
        padding: var(--spacing-md);
    }

    .prompt-text-content {
        font-size: 0.9rem;
        padding: var(--spacing-sm);
    }

    .prompt-text-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .copy-prompt-btn,
    .close-modal-btn {
        width: 100%;
        padding: var(--spacing-md);
        font-size: 0.9rem;
    }

    .summary-section {
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .summary-content {
        max-width: 380px;
        padding: var(--spacing-sm);
    }

    .summary-text {
        font-size: 0.8rem;
        line-height: 1.35;
    }

    .category-section {
        padding: var(--spacing-xs);
    }

    .template-grid-container {
        padding: 6px 2px;
    }

    .template-image {
        min-height: 160px;
    }

    .template-grid {
        gap: 6px;
    }

    .modal-content {
        width: 96vw;
        max-height: 90vh;
        max-width: 460px;
    }

    #modalImage {
        max-height: 86vh;
    }

    .back-to-top-btn {
        bottom: 85px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

/* ====== Responsive: 400px ====== */
@media (max-width: 400px) {
    .prompt-gallery-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .prompt-item-image {
        height: 180px;
    }

    .prompt-modal {
        padding: var(--spacing-sm);
    }

    .prompt-modal-content {
        border-radius: var(--radius-md);
    }

    .prompt-text-content {
        font-size: 0.85rem;
    }
}

/* ====== Dark Mode ====== */
@media (prefers-color-scheme: dark) {
    .template-page {
        background: #0a0a0f;
    }

    .page-header {
        background: linear-gradient(135deg, #4a5acd, #5a3d80);
    }

    .nav-tabs {
        background: rgba(30, 30, 40, 0.9);
        border-color: rgba(255, 255, 255, 0.06);
    }

    .nav-tab {
        color: rgba(255, 255, 255, 0.5);
    }

    .nav-tab:hover:not(.active) {
        color: var(--primary);
        background: rgba(102, 126, 234, 0.1);
    }

    .prompt-intro-section,
    .prompt-gallery-section,
    .summary-section,
    .category-section {
        background: #111118;
        border-bottom-color: rgba(255, 255, 255, 0.04);
    }

    .prompt-intro-card,
    .summary-content {
        background: rgba(255, 255, 255, 0.04);
        border-color: rgba(255, 255, 255, 0.06);
    }

    .prompt-intro-text p,
    .summary-text {
        color: rgba(255, 255, 255, 0.7);
    }

    .prompt-item,
    .template-card {
        background: #1a1a24;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .prompt-item:hover,
    .template-card:hover {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    }

    .prompt-item-name {
        background: #1a1a24;
        border-top-color: rgba(255, 255, 255, 0.04);
        color: rgba(255, 255, 255, 0.9);
    }

    .category-item {
        background: rgba(255, 255, 255, 0.04);
        color: rgba(255, 255, 255, 0.7);
    }

    .category-item:hover {
        background: rgba(102, 126, 234, 0.12);
    }

    .category-badge {
        background: rgba(255, 255, 255, 0.08);
    }

    .template-image,
    .template-image img,
    #modalImage {
        background: #1a1a24;
    }

    .template-title {
        color: rgba(255, 255, 255, 0.9);
    }

    .prompt-modal-content {
        background: #1a1a24;
    }

    .prompt-modal-header {
        background: #111118;
        border-bottom-color: rgba(255, 255, 255, 0.06);
    }

    .prompt-text-container {
        background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.06);
    }

    .prompt-text-content {
        background: #111118;
        border-color: rgba(255, 255, 255, 0.06);
        border-left-color: var(--primary);
        color: rgba(255, 255, 255, 0.85);
    }

    .close-modal-btn {
        background: rgba(255, 255, 255, 0.06);
        color: rgba(255, 255, 255, 0.7);
        border-color: rgba(255, 255, 255, 0.08);
    }

    .close-modal-btn:hover {
        background: rgba(255, 255, 255, 0.1);
        color: white;
    }

    .modal-backdrop {
        background: rgba(0, 0, 0, 0.9);
    }

    .action-btn {
        background: rgba(255, 255, 255, 0.04);
        border-color: rgba(255, 255, 255, 0.06);
        color: rgba(255, 255, 255, 0.7);
    }

    .back-to-top-btn {
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
    }
}

/* ====== Performance ====== */
.template-card,
.category-item,
.action-btn {
    will-change: transform;
}

.template-image img {
    will-change: transform;
}